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Edumatsains
Published by Universitas Kristen Indonesia
ISSN : 25277642     EISSN : 25277235     DOI : -
Core Subject : Science, Education, Agriculture,
Agriculture, Biological Sciences & Forestry Chemistry Education Mathematics Physics
Jurnal EduMatSains merupakan wadah untuk menampung dan mempublikasikan hasil karya baik berupa hasil penelitian maupun kajian teori yang original dalam ruang lingkup pendidikan matematika dan pendidikan sains (fisika, kimia, biologi) serta ilmu matematika dan ilmu sains (fisika, kimia, biologi) bagi semua civitas academika khususnya dosen, guru, peneliti dan mahasiswa. Jurnal EduMatSains terbit sebanyak dua kali dalam satu tahun (Juli dan Januari). Jurnal EduMatSains diterbitkan Oleh Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia.
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Articles 8 Documents
 1 
Search results for , issue "Vol 4 No 2 (2020): Januari" : 8 Documents clear
Kembang Telang (Clitoria ternatea L.): Pemanfaatan dan Bioaktivitas Endang Christine Purba
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 4 No 2 (2020): Januari
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v4i2.1377

Abstract

Clitoria ternatea L. is one of the medicinal plants that has been widely known its use by Indonesians. Clitoria ternatea belongs to Fabaceae family. This plant is known as Kembang Telang. Commonly used for ornaments, the roots, leaves, seeds and flowers of Clitoria ternatea are used for food purposes and traditional medicine. Kembang Telang has several pharmacological potentials, which are anti-microbial, antioxidant, anti-depressant, anthelmintic, anti-cancer and anti-diabetic. The writing of this article collects information on the use of ethnobotanical Clitoria ternatea plants and the results of their test content. It is hoped that this information would become information to determine the other potential of Clitoria ternatea as a source of both traditional and modern medicines. Keywords : anti-cancer, anti-diabetic, anthocyanins, flavonoids
Karakterisasi Alginat Sebagai Bahan Setara Dengan Jaringan Lunak Untuk Radioterapi Taat Guswantoro; Astri Suppa Supratman; Imelda Sakti Asih
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 4 No 2 (2020): Januari
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v4i2.1378

Abstract

At the time of radiotherapy treatment in addition to cancerous tissue, normal tissue around the cancer will also be exposed to radiation doses, inappropriate radiation doses will cause normal tissue to potentially become new cancers called Organ at Risk (OARs). To minimize OARs by using a device made of soft tissue equivalent material that is placed over the surface of the skin called a bolus. The function of this material ensures an increase in surface dosage, this material is also flexible, easy to form, resistant to temperature changes. One of the materials that is easily formed, not easily deformed, flexible and durable is Alginate, because it is a natural hydrogel extracted from brown seaweed. Alginate that will be used in this research is alginate which is often used by dentists to print dentures. Alginate powder is formed by dough with distilled water, then printed in a mold measuring 11 x 11 cm with a thickness of 5, 7 and 9 mm. The characterization of this alginate gel includes electron density and an increase in surface dose percentage. Electron density is obtained by using CT-Scan to find out CT-Number which is then entered into the equation to obtain electron density, electron density from Alginate is obtained by 0.949 so Alginate can be said to be equivalent to breast tissue and fat tissue. Increasing the percentage of surface dose obtained by using the Linac device, obtained at 10 MeV energy Alginate thickness of 5 mm can increase by 0.50%, thickness of 7 mm can increase 9.97% and 9 mm can increase by 19.64%. At 12 MeV energy, 5 mm Alginate is able to increase 0.36%, 7 mm thickness increases by 6.46% and 9 mm thickness is able to increase by 15.03%. With this result Alginate is a soft tissue equivalent material and is able to increase the percentage of surface doses, so that alginate can be applied as a bolus for radiotherapy. Keywords : Alginate, Electron Density, Percentage of Surface Doses.
Analisis Pola Curah Hujan Terhadap Produktifitas Tanaman Padi Sawah di Provinsi Jawa Barat Faradiba
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 4 No 2 (2020): Januari
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v4i2.1379

Abstract

Increasing agricultural productivity can be influenced by various factors, one of which is rainfall. Changes in rainfall that are quite volatile cause agricultural productivity, especially for wetland paddy, is difficult to predict. The importance of predictions is made in order to prevent the decline in productivity of paddy that have an impact on the welfare of the people in Indonesia. This study aims to look at changes in rainfall patterns associated with the productivity of wetland paddy. The data used in this study is in the form of rainfall and wetland paddy production in 2002-2015. The method u`sed in this research is descriptive analysis related to pattern analysis and determination of data patterns using spectral analysis which can be seen from the results of peroidigrams. The results of this study are the pattern of rainfall that is repeated based on the periodogram analysis. Rainfall patterns in West Java Province occur every 33 months or 3 years. Increased productivity of wetland paddy occurred in 2006, 2009,2012, 2015 in accordance with the pattern of rainfall that occurs every 3 years. The characteristics of rainfall types in West Java Province in 2002-2015 are in the range of slightly wet to very wet. Keywords : rainfall, wetland paddy,spectral analysis.
Analisis Miskonsepsi Pada Soal Cerita Teori Peluang Di Program Studi Pendidikan Matematika Jitu Halomoan Lumbantoruan; Hendrikus Male
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 4 No 2 (2020): Januari
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v4i2.1380

Abstract

In this study the background to the problem is the low student learning outcomes in the Theory of Opportunities course. Opportunity theory is a course where students must master terminology, concepts, principles, algorithms and languages ??or the essence of a story problem. To be able to solve mathematical story problems, it is obligatory to master the five components. The purpose of this study is to determine where misconceptions are often experienced by students in understanding the essence and problem solving of probability theory stories, as well as any factors that hinder the learning process of opportunity theory courses outside the five components. The research subjects taken were mathematics education students in the odd semester of the 2018/2019 school year. Data collection techniques and methods used are the method of observation, interviews, documentation, and tests. The results of this study indicate that there are 41% do not master the terminology, the concept of 44.7%, prinsisp 47.8%. Algorithm 51%, and language / conclusion drawing 52%. There were 12 questions that were tested and the average student who could answer haya was around 51% and those who were still experiencing misconceptions were 49%. Algorithm and conclusion drawing are one where many students experience misconceptions in solving the problem story theory questions. Keywords : Misconception of probability theory, Misconception Analysis
Pengaruh Kandungan Oksigen Udara Sekolah Terhadap Konsentrasi Belajar Siswa Leony Sanga Lamsari Purba; Nelius Harefa
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 4 No 2 (2020): Januari
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v4i2.1381

Abstract

Oxygen content in the surrounding air affects the oxygen intake of the human brain. In learning, the adequacy of brain oxygen affects students' readiness to begin learning, which can be observed through the concentration of student learning. Through this research, information on the effect of school air oxygen content on student concentration will be obtained. The study population was East Jakarta State High School, with a sample of SMA Negeri 9 Jakarta, SMA Negeri 91 Jakarta, SMA 61 Jakarta, SMA 71 Jakarta, SMA Negeri 14 Jakarta. The sampling technique is Purpose Sampling. To obtain information about the oxygen content of school air, measurements were carried out using a Disolved Oxsigen Meter (DO Meter) with an average result of 25.98 school air oxygen levels. validated. Data analysis was performed using exlel. The average concentration of student learning is 1.85 from a scale of 4. The results of hypothesis testing using SPSS 24 obtained tcount of 83.754> ttable of 2.776, with a significance level <0.05 ie 0.00. Furthermore, the results of the linear regression correlation test obtained r = 0.948, air oxygen levels around the school with the concentration of student learning at a sig level of 0.14 (sig 0.05). Both of the results of this analysis indicate that this shows that there is an influence of the oxygen content of the school air on the concentration of student learning with a positive correlation. Keywords : Air, Oxygen, Brain, Concentration, Learning
Meningkatkan Kemampuan Bernalar Siswa SD pada Pembelajaran IPA dengan Pendekatan Pembelajaran Saintifik dan Kegiatan Storytelling Septina Severina Lumbantobing; St Fatimah Azzahra
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 4 No 2 (2020): Januari
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v4i2.1387

Abstract

The purpose of this study is to get a picture of the increase in reasoning ability of students who get science learning with a scientific approach combined with storytelling activities. This research was conducted at Elementary School 07 Jakarta semester 2019/2020. This type of research is a quasi experiment with the research design used one group pretest posttest group design. The sample in this study amounted to 50 students. The instrument used was a test of reasoning ability for subject matter always saving energy in the form of an essay test of 15 questions. The aspects of reasoning ability studied consisted of aspects of identifying, explaining and analyzing. The results showed the students' reasoning ability increased by 0.57 in the medium category. For the 3 aspects of reasoning ability studied, there was an increase in the identifying aspect by 46%, the explaining aspect by 94% and the analysis aspect by 88%. Keywords : reasoning ability, scientific approach, storytelling
Penentuan Suhu Kalsinasi Optimum CaO dari Cangkang Telur Bebek dan Cangkang Telur Burung Puyuh Nya Daniaty Malau; Fajar Adinugraha
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 4 No 2 (2020): Januari
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v4i2.1388

Abstract

The need for implants increases with the high number of fracture sufferers resulting from accidents both on the road and workplace accidents. Bioceramics is a ceramic product or component used in the medical and dental industry, especially as an implant or organ replacement. Hydroxyapatite is one type of bioceramics that is widely used because it has osteoconductive properties (can stimulate bone growth), bioactive and biocompatible. This study aims to find the optimal temperature of the calcination process of duck egg shells and quails as the basic ingredients of HAp. The research method is calcination of duck eggshells then the optimum temperature produces the best CaO. The calcination results obtained that the optimum temperature of calcination of duck eggshells and quail eggs was 1000oC for 6 hours. The results obtained are CaO with clean white color powder and fine grain size. Keywords : Quail eggshell, calcination, dugg egg shell
Penanganan Hipotiroid pada Anak dengan Sindrom Nefrotik Bernadetha Nadeak
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 4 No 2 (2020): Januari
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v4i2.1389

Abstract

Hypothyroid or thyroid hormone deficiency is a state of hormone deficiency due to the thyroid gland not being able to produce sufficient amounts. This hypothyroid is a complication that often occurs in nephrotic syndrome, but often does not show clinical symptoms. Hypothyroid in nephrotic syndrome occurs due to the release of thyroid hormone and thyroxin-binding globulin (TBG) through urine which will reduce the concentration of free thyroid hormone and increase thyroid stimulating hormone (TSH). The purpose of writing this article is to find out how to manage hypothyroid in children with nephrotic syndrome. The method used in this paper is qualitative research with a "library research" approach, where researchers as "key instruments" read theories that are directly related to the topic of writing sourced from books, journals, proceedings and other documents (online and printed) and make it into research data which were analyzed descriptively. The results of this study suggest that the condition of hypothyroid in patients with nephrotic syndrome often does not show typical clinical symptoms. So suggestions for screening for thyroid function need to be considered. Thus it is known quickly if there is a hypothyroid condition and its possible complications, and can be normalized thyroid hormone concentration (FT 3, FT 4, TSH) by using TSH as a marker of succession replacement therapy. The conclusion is hypothyroid is a complication that can occur in nephrotic syndrome which can cause complications in the form of growth and development disorders and can increase the risk of death or mortality, so that management must be carried out which, thereby reducing mortality or mortality Keywords : child, hypothyroid, nephrotic syndrome

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